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Chia-Ming Chang 7f9f7c6974 md/raid5: fix soft lockup in retry_aligned_read() 
When retry_aligned_read() encounters an overlapped stripe, it releases
the stripe via raid5_release_stripe() which puts it on the lockless
released_stripes llist. In the next raid5d loop iteration,
release_stripe_list() drains the stripe onto handle_list (since
STRIPE_HANDLE is set by the original IO), but retry_aligned_read()
runs before handle_active_stripes() and removes the stripe from
handle_list via find_get_stripe() -> list_del_init(). This prevents
handle_stripe() from ever processing the stripe to resolve the
overlap, causing an infinite loop and soft lockup.

Fix this by using __release_stripe() with temp_inactive_list instead
of raid5_release_stripe() in the failure path, so the stripe does not
go through the released_stripes llist. This allows raid5d to break out
of its loop, and the overlap will be resolved when the stripe is
eventually processed by handle_stripe().

Fixes: 773ca82fa1 ("raid5: make release_stripe lockless")
Cc: stable@vger.kernel.org
Signed-off-by: FengWei Shih <dannyshih@synology.com>
Signed-off-by: Chia-Ming Chang <chiamingc@synology.com>
Link: https://lore.kernel.org/linux-raid/20260402061406.455755-1-chiamingc@synology.com/
Signed-off-by: Yu Kuai <yukuai@fnnas.com>
 		2026-04-07 15:13:52 +08:00
..
bcache bcache: fix uninitialized closure object 2026-04-03 05:11:08 -06:00
dm-pcache Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-vdo
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persistent-data Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
Kconfig
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Makefile
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dm-audit.c
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dm-audit.h
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dm-bio-prison-v1.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-bio-prison-v1.h
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dm-bio-prison-v2.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-bio-prison-v2.h
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dm-bio-record.h
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dm-bufio.c
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dm-builtin.c
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dm-cache-background-tracker.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-cache-background-tracker.h
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dm-cache-block-types.h
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dm-cache-metadata.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-cache-metadata.h
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dm-cache-policy-internal.h
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dm-cache-policy-smq.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-cache-policy.c
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dm-cache-policy.h
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dm-cache-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-clone-metadata.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-clone-metadata.h
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dm-clone-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-core.h
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dm-crypt.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-delay.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-dust.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ebs-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-era-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-exception-store.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-exception-store.h
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dm-flakey.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ima.c
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dm-ima.h
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dm-init.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-integrity.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-io-rewind.c
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dm-io-tracker.h
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dm-io.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ioctl.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-kcopyd.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-linear.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-log-userspace-base.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-log-userspace-transfer.c
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dm-log-userspace-transfer.h
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dm-log-writes.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-log.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-mpath.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-mpath.h
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dm-path-selector.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-path-selector.h
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dm-ps-historical-service-time.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-io-affinity.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-queue-length.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-round-robin.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-service-time.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-raid.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-raid1.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-region-hash.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-rq.c
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dm-rq.h
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dm-snap-persistent.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
dm-snap-transient.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-snap.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
dm-stats.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-stats.h
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dm-stripe.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-switch.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-sysfs.c
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dm-table.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-thin-metadata.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-thin-metadata.h
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dm-thin.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-uevent.c
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dm-uevent.h
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dm-unstripe.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-verity-fec.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-verity-fec.h
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dm-verity-loadpin.c
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dm-verity-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-verity-verify-sig.c
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dm-verity-verify-sig.h
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dm-verity.h
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dm-writecache.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-zero.c
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dm-zone.c
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dm-zoned-metadata.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
dm-zoned-reclaim.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-zoned-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-zoned.h
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dm.c
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dm.h
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md-autodetect.c
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md-bitmap.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
md-bitmap.h
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md-cluster.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
md-cluster.h
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md-linear.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
md-llbitmap.c md/md-llbitmap: optimize initial sync with write_zeroes_unmap support 2026-04-07 13:09:22 +08:00
md.c md: wake raid456 reshape waiters before suspend 2026-04-07 13:09:22 +08:00
md.h md/raid1: serialize overlap io for writemostly disk 2026-04-07 13:09:22 +08:00
raid0.c md/raid0: use kvzalloc/kvfree for strip_zone and devlist allocations 2026-04-07 13:09:21 +08:00
raid0.h
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raid1-10.c
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raid1.c md/raid1: serialize overlap io for writemostly disk 2026-04-07 13:09:22 +08:00
raid1.h
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raid5-cache.c md/raid5: validate payload size before accessing journal metadata 2026-04-07 13:09:22 +08:00
raid5-log.h
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raid5-ppl.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
raid5.c md/raid5: fix soft lockup in retry_aligned_read() 2026-04-07 15:13:52 +08:00
raid5.h md/raid5: remove stale md_raid5_kick_device() declaration 2026-03-23 02:15:11 +08:00
raid10.c md/raid10: fix deadlock with check operation and nowait requests 2026-03-16 01:24:59 +08:00
raid10.h
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